I have a 64 Chevy11, currently 6cyl. I have purchased a 400small block and want to lose tjhe powerglide. I am looking for a recomendation for 700r4 vs 200r4. rearend is most likely a 3.08. Also I have a new 2500 converter that is not a lock up. I it worht the ezpense to get a locking converter ?

I hope you post pictures as the project comes along.If its for the grandson then the project will be twice as much fun. I hope the boy doesnt fight about the power out put and keeps it conservative.The upgraded front end is a great idea,even if its just the safety aspect.

I think he believes me that the 400 on the lazy side will out last the smaller wound up power plant. He sees the difference in out dirt bikes, my lazy 4 stroke vs the screaming 2 stroke he rides. I remember how the old chevy 11 handled. Brakes were terrible. When you made a hard stop. the body would pitch forward and the rr wheels locked up. Of course it was meant to be an around town commuter giving 16 mpg.

I used a 200 4r for my nova. Its just about the same as the gp for length. I didn't have to shorten the drive shaft. I just move the cross member back to the next holes and redrilled a couple of new ones. My nova is a 1977 which is different than yours. I rebuilt mine myself and added extra clutches. I rebuilt and upgraded it to a ten vane pump and relieved it. I also put in large boost valves. I love it. But i agree, if your going to keep 3.08 gears, there is no sense for an overdrive. Mine is 350 hp 355 ci with 3.73 10 bolt poss. Now i have my low gears for street and highway gear for traveling.

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